Research-backed mineral with potential health benefits.
Only if a blood test shows you're deficient. Don't guess with this one.
Iron bisglycinate is the winner. It's much gentler on the stomach than older forms like ferrous sulfate.
It often does. Take it with food, drink plenty of water, and choose a gentle form like bisglycinate to minimize this.
Click through to the studies bar for the evidence base.
See the dosing guide below.
Compare formats before buying.
Some ingredients build up over weeks. Others act fast.
The compound effect of consistent dosing.
Check the cautions section if you have a pre-existing condition.
Some ingredients you feel. Others just work in the background.
You might notice small changes in 1-2 weeks, but it takes 2-3 months to fully rebuild your iron stores and feel normal again.
No. Coffee, tea, and calcium block its absorption. Take it at least an hour apart from them.
Almost never. It's a specific medical formulation given by IV or injection for severe anemia under a doctor's care.
Heme comes from animal products and absorbs better. Non-heme is from plants. Most supplements are non-heme.
Most research uses 0.0g daily. Below 0.0g, you're probably wasting money. Above 0.0g, no extra benefit. The curve plateaus. Safe upper limit ~ 0.0g.
Pending comprehensive analysis.
Red meat and organ meats (heme iron) · Lentils, beans, tofu, and spinach (non-heme iron)
Iron-Dextran Complex interacts with other supplements and meds. The analyzer flags interactions, dose mismatches, and timing collisions across your whole list.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.